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P2P Over MANET

P2P Over MANET. An Introduction to Mobile Resource Sharing. Introduction to MANETs. Mobile Ad Hoc Network (MANET) Under research for the past 10 years Only a small amount of MANETs are currently used in the real world Autonomous system of mobile routers and nodes

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P2P Over MANET

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  1. P2P Over MANET An Introduction to Mobile Resource Sharing

  2. Introduction to MANETs • Mobile Ad Hoc Network (MANET) • Under research for the past 10 years • Only a small amount of MANETs are currently used in the real world • Autonomous system of mobile routers and nodes • All elements reside on wireless domains • Nodes can join and leave the network at any time • Dynamic topology • Wireless connectivity implements node mobility • Primarily operates in the network layer (layer 3), but can be implemented in other layers as well

  3. MANET Interface • Connecting point where nodes can attach[1] • Allows MANETs to connect to each other • Every MANET interface must have a unique identifier • Neighborhood • Time-varying asymmetric Reachability[1]

  4. MR3 MR4 MR1 MR2 N1 N2 N4 N3 N5 N6 MANET Neighbors

  5. MR3 MR4 MR1 MR2 N1 N2 N4 N3 N5 N6 MANET Asymmetric Readability

  6. MANET Router (MR) • Has one or more MANET interfaces • May have zero or more non-MANET interfaces [1] • Hides MANET characteristics from all nodes that do not support MANET • Only one MR is required to setup a MANET, however, the more the better

  7. MANETs and Other Wireless Network Technologies • IEEE 802.11 (WI-FI) can not be used to implement a MANET, they do not share characteristics • WI-FI is just a wireless version of a wired network[3] • The two main differences in WI-FI and MANETs: • WI-FI operates in the data-link layer (layer 2) and MANETs must exist in the network layer • Access points are required for a WI-FI network to effectively work, which is a rule that is not bound to MANETs • Bluetooth has been successfully used to implemented a MANET

  8. MANETs and Existing Wired Networks • Can be implemented as an overlay on top of any wired topology or network • Routers which support intercommunication can have two or more interfaces including MANET interface • Specific MANET routing protocols are used to route traffic across its network • MANET packets are encapsulated in IP packets and vice versa • In an MANET overlay, a node on the MANET network can communication with a node located on an IP network. This transformation is bi-directional

  9. MR3 MR1 MR2 Asymmetric Reachability

  10. Peer to Peer (P2P) • An Overview of P2P will start here and continue for the next 3 to 5 slides

  11. P2P Over MANET • A mobile ad hoc network with a peer to peer overly • The MANET will operate in the first four layers of the OSI model, while P2P will run in the fourth through seventh layer • Both inhibit similar characteristics • Next generation of client based networks

  12. P2P Over MANET • Can be implemented in more than one way considering that: • There is more than one MANET protocol • P2P can be built as a structured, unstructured, data-centric, overlay, or hybrid architecture. • Each P2P architecture has a multitude of protocols and characteristics which inhibit different features and constraints • A structured P2P architecture works best with MANETs • Structured P2P uses Distributed Hash Tables (DHT), which there are many to choose from with different characteristics i.e. Chord, Pastry, etc.

  13. P2P Over MANET Protocol Stack OSI P2P Application Application Presentation Presentation Session Layer Session Layer MANET Transport Transport Transport Network Network Data-link Data-link Physical Physical

  14. Homogeneous Characteristics of P2P and MANET • Supports node churning[2]; consistency of nodes entering and leaving the network • Traffic patterns closely resemble those caused by multi-hop broadcasting or multicasting [3] • Dynamic topology • The ability for nodes to rearrange themselves when connecting to the network • Fault tolerant; resistant and transparent to errors • Unique Identifiers are required to identify nodes

  15. Why P2P Over MANET • Put some good stuff to say here about the benefits of P2P Over MANET

  16. P2P Over MANET Architectures • The P2P Over MANET description of architectures starts here and will continue for the next 3 to 5 slides.

  17. Example of P2P Over MANET Architecture • This slides starts the description of example and will continue for the next 4 to 6 slides

  18. Typical Problems with P2P Over MANET • Put some things that need to be fixed with P2P Over MANET here

  19. Possible Applications for P2P Over MANET • The applications for P2P Over MANET starts here and continues for maybe one more slide

  20. References • References will go here

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